V4L/DVB: V4L2: soc-camera: add a MIPI CSI-2 driver for SH-Mobile platforms

Some SH-Mobile SoCs implement a MIPI CSI-2 controller, that can interface to
several video clients and send data to the CEU or to the Image Signal
Processor.  This patch implements a v4l2-subdevice driver for CSI-2 to be used
within the soc-camera framework, implementing the second subdevice in addition
to the actual video clients.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 46 insertions, 0 deletions

diff --git a/include/media/sh_mobile_csi2.h b/include/media/sh_mobile_csi2.h
new file mode 100644
index 0000000..4d26151
--- /dev/null
+++ b/include/media/sh_mobile_csi2.h
@@ -0,0 +1,46 @@
+/*
+ * Driver header for the SH-Mobile MIPI CSI-2 unit
+ *
+ * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef SH_MIPI_CSI
+#define SH_MIPI_CSI
+
+enum sh_csi2_phy {
+	SH_CSI2_PHY_MAIN,
+	SH_CSI2_PHY_SUB,
+};
+
+enum sh_csi2_type {
+	SH_CSI2C,
+	SH_CSI2I,
+};
+
+#define SH_CSI2_CRC	(1 << 0)
+#define SH_CSI2_ECC	(1 << 1)
+
+struct platform_device;
+
+struct sh_csi2_client_config {
+	enum sh_csi2_phy phy;
+	unsigned char lanes;		/* bitmask[3:0] */
+	unsigned char channel;		/* 0..3 */
+	struct platform_device *pdev;	/* client platform device */
+};
+
+struct sh_csi2_pdata {
+	enum sh_csi2_type type;
+	unsigned int flags;
+	struct sh_csi2_client_config *clients;
+	int num_clients;
+};
+
+struct device;
+struct v4l2_device;
+
+#endif